RT Journal Article SR Electronic T1 A Survey of Genome Editing Activity for 16 Cpf1 orthologs JF bioRxiv FD Cold Spring Harbor Laboratory SP 134015 DO 10.1101/134015 A1 Bernd Zetsche A1 Jonathan Strecker A1 Omar O. Abudayyeh A1 Jonathan S. Gootenberg A1 David A. Scott A1 Feng Zhang YR 2017 UL http://biorxiv.org/content/early/2017/05/04/134015.abstract AB The recently discovered class 2 CRISPR-Cas endonuclease Cpf1 offers several advantages over Cas9, including the ability to process its own array and requirement for just a single RNA guide. These attributes make Cpf1 promising for many genome engineering applications. To further expand the suite of Cpf1 tools available, we tested 16 Cpf1 orthologs for activity in eukaryotic cells. Four of these new enzymes demonstrated targeted activity, one of which, from Moraxella bovoculi AAX11_00205 (Mb3Cpf1), exhibited robust indel formation. We also show that Mb3Cpf1 displays some tolerance for a shortened PAM (TTN versus the canonical Cpf1 PAM TTTV). The addition of these enzymes to the genome editing toolbox will further expand the utility of this powerful technology.